Written for dealership mechanics, this wiring diagram shows you how to follow the wiring from bumper-to-bumper. It will help you understand connector configurations, and locate and identify circuits, relays, and grounds.. wiring diagram for 2002 Lincoln LS radio. i am hooking up an i am hooking up an aftermarket CD player in my 2002 Lincoln LS. i need to know the factory color scheme for my cars audio wire harness. Submitted: 10 years ago 33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance. Cam. Journeyman Automotive. Lincoln LS 2000-2002 is famous as luxurious mid-sized vehicle that is manufactured to meet the needs of young generation. There are two trim levels on the basis of engine type. There are two trim levels on the basis of engine type..